Revolving multiple-fuse block.



' No. 887,559. PATENTED MAY 12, 1908..

B, WESTERDAHL,

- REVOLVING MULTIPLE FUSE BLOCK.

APPLICATION 1 11.21 MAY 27, 1907.

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ENo'on wEsrEnDAHL, OF THIEF ivet .ininisinNNEsorAC nEvo viNeMUL'rrraErUsnBn-ocK.

To all whom it may concern;

Be it known that-I, ENOQH Wns'rERnAHn,

a citizen of the United States, residing at Thief RiverFalls', in thecounty of Red Lake and State of Minrffesota, have invented certam newand use ullmprovements in Re volvin lMultiple-Euse Blocks; and I dodeclare t e following-to be a full,- clear, and ex 1. appertams to makeand use the same.

act description of the-invention,- s lch as will enable ot ers skilledin the art to it his invention relates to improvements in I aimltiple;fuse blocks, inlwhich a plurality of j fuses are carried, so thatwhenone fuseburns;

.12 5 a 'SltlOD and the circuit at once. restored out another may bequickly 'broughtint'e qg The object of the invention is to provide asimple and efficient device of this class ,which may be cheaplymanufactured and quickly ,zoj

and easily operated. In.the accompanying drawings-Figure 1 {re resents aers 'ective view of this device 'un oaded an wit one fuse shown-indotted lines in the act of being inserted; Fig. 2 represents alongitudinal section thereof; and

Fig. 3 represents a transverse section, taken online 3.-3/of Fig. 1.

having "wall or other structure, and provided with spaced blocks 3- and4, between which the In the embodiment illustrated, a supportlngr fr'ameis shown consisting .of a base plate s'crewholesas2 for securing it toa' yfuse-carrying element is adapted to be rotatably mounted: The innerfaces of these blocks 3 and 4 have annular-recesses of a proper depth toprovide inwardly-extending, annular anges 5 and 6', which form guards.

for the ends of'the'fuses carried by the member 10 to hold them againstlateral displacement, and central bosses 5 and 6 between which thefuse-carrying member 10 is mounttends longitudinally through the blocks3 and- 4 and is rotatably. mounted in bearingsin I I Specification ofLetters Patent. Y Application filedMay 27,1907. Serial'No. 375,935. 7

said blocks. and it projects at one nd Patented May 12, 1908.

the outerface ofone. ofthe blocks is provided with a knob'8 for turningit. Thisfuse-carrying member 10 is preferably made.

cylindricalandhas a plurality ofv longitudinally-arranged grooves 11formed in its pe- "riphery, said grooves beingof a d'epth-suflicient'tohold'the fuses 20 so 'that their sides will be approximately flush withthe periphery of the cylinder 10; This cylinder 10 is of slightly lesslength than thefuse's, so that the ends of the fuses may extend beyondthe opposite end of .the block 10 into the'recessesin the inner faces ofthe blocks 3 and 4. Proecting into the recesses .in the inner faces ofsaid blocks 3 and 4 at opposite. sides thereof are oppositely; disposed;pairs of- 'spaced, spr1 g contact plates, as Hand 13, between whichtheends of the fuses are adapted to be inserted to establish the circuit.

These springs are made in the form shown in Fig. 2, and-theshanks'thereof eX.-'

tend longitudinally throughthe blocks 3 and 4, those in one block beingin longitudinal alinement with those in the other block.

These plates 12 and 13 are arranged in pairs at opposite sides of theblocks 3 and 4, and

the plates of each pair are coriiliected at their outer ends by acontact screw as 17, which" -eXtends transversely through the sides ofthe blocks 3 and 4 and through the plates and 1 form binding ppsts forthe wires.

The inner endsof the plates 13 are offset with their terminals extendingparallel with the outer endsoi the plates 12 and are adapt ed to lit inthe recesses in the inner faces of the blocks, The ofiset portions14.being of a length slightly less than the width of the fuse endspermitsaid fuse ends to be sprung between the parallel ends of the plates 1?and 13 and be held thereby in operative position. These pairs of platesat opposite sides of each block are connected with the circuit wires 15and 16. These wires extend through 0 en ings in the base plate 1 and inthe bio s 3 and 4, and each is clamped between the headof the screw, as17 and a brass washer or late, as 18, at the respective ends of the Thewires 15 and 16 are used'when looks. it is desired to pass the circuitwires through the ends of the blocks 3 and 4 instead of through the baseplate 1.

In theuse of this device, the parts being assembled'as shown in Fig. 1,the rotatable fuse-carryin member 10 has a fuse placed in each of itslongitudinal grooves by turnlng the block until one groove registerswiththe socket in the nd-wall of the block, when one end 01? fa-fu e maybe inserted therein and then moved longitudinally in the other directionuntil the. posits end passes under the .fiange offthe 0t er block. Themember isthen turned sufficiently to-cause the next groove to registerwith the socket, and so on,

' -'-until all the groovesare filled.

When so filled, two of the iusesat opposite sides of the frame are heldbetween the ends of the s ring contact plates ,in the blocks 3 and 4;until the shaft is turned to bring'other fuses into the places of thosedesired to be removed.

I claim as my invention;-

1. A multiple fuse block comprising a base.

plate provided with spaced blocks, the inner acesof said blocks havinannular recesses formed therein andthe end wall of one of said recesseshaving a socket therein, and a lusecarrying member revoluhly mountedbetweensaid blocks and having longitudinal grooves therein adapted toregister successively with said socket. 2. .A multiple fuse blockcomprising a base late' provided with spaced blocks, the inner aces ofsaid blocks having annular recesses formed therein, transversely-spacedspring contact plates recesses, and a projecting into said annularuse-carrying member rotatably mounted between said blocks and having aplurality of fuse seats. y

3. A multiple fuse block comprising a base plate provided with spacedhlocks, the inner aces of said blocks having annular recesses formedtherein, 0p ositely-disposed airs of transversely-space contacts arrangein said, annularreeesses, and a fuse-carrym mem ber revolubly mountedbetween sair blocks and havin a lurality of fuse seats.

4. A multip e fuse block comprising a base late provided with spacedblocks, the inner aces of said blocks having annular recesses formedtherein, op ositely-disposed airs of transversely-space contacts arrangein said annular recesses, the plates in one block be ing arrangedopposite those in the other block and in longitw inal alinement, and afuse-carrying element rotatably mounted between said blocks.

5. A multiple fuse block comprising a'ba'se plate provided with spacedblocks, the inner aces of each having annular recesses formed nesses.

. ENOGll WES'llilRll-U-ll).

Witnesses:

W. K. NICHOLS, P. NEAL IAnsnmcnn

